The present invention relates to formulations of crude degummed corn oil (CDGCO) for use as plant biostimulants, for increasing yield and quality and for offsetting phytotoxic effects of active ingredients in pesticides and plant washes. Such formulations are typically combined with one or more emulsifier and a solvent, and or just an emulsifier or just a solvent, and combined with water and applied to plants as a spray or fog to foliage, or pruning cuts, or a a root zone drench, or to seeds. The invention improves upon existing pesticide formulations by reducing phytotoxicity. The invention provides for affordable plant biostimulant formulations for agriculture for producing better quality and higher yielding crops when subject to environmental stresses.